Iris is a genus of rhizomateous or bulbous perennials, commonly grown by gardeners.
The flowers have six petals, three that point up (standards) and three that curve down (falls).
They come in a wide variety of colours and some have two or more colours on a flower.

Bearded Iris

The bearded iris is perhaps the most widely grown Iris.
It grows a fan of leaves from a horizontal rhizome, usually located on the surface of the soil.
Most cultivars have been bred from Iris germanica.